## steradian

#### a concept in Ontology of units of Measure (OM) 1.8

The steradian is a unit of solid angle defined as the solid angle subtended at the center of a sphere by a portion of the surface of the sphere that has an area equal to the square of the radius of the sphere.

#### Types

### Properties of steradian

#### rdfs:comment

- The steradian is a unit of solid angle defined as the solid angle subtended at the center of a sphere by a portion of the surface of the sphere that has an area equal to the square of the radius of the sphere. [en]

#### rdfs:label

- steradiaal [nl]
- steradian [en]
- 球面度 [zh]

#### longcomment

- The steradian is a unit of solid angle defined as the solid angle subtended at the center of a sphere by a portion of the surface of the sphere that has an area equal to the square of the radius of the sphere. The steradian is a derived unit in the International System of Units.

#### symbol

- sr

### Usage of steradian

#### as value of singular unit

#### as value of unit of measure

#### as value of term 2

#### as value of denominator

#### as value of derived unit

#### as value of term 1

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